Function screen_show

library/LuaApi.cpp:3201–3213

namespace {

int screen_show(lua_State *L)
{
    df::viewscreen *before = NULL;
    if (lua_gettop(L) >= 2)
        before = Lua::CheckDFObject<df::viewscreen>(L, 2);

    df::viewscreen *screen = dfhack_lua_viewscreen::get_pointer(L, 1, true);

    bool ok = Screen::show(std::unique_ptr<df::viewscreen>{screen}, before);

    lua_pushboolean(L, ok);
    return 1;
}

static int screen_dismiss(lua_State *L)
{